Unit for applying cement pneumatically



Oct. 17,1939. H. L. EKIN UNIT FOR APPLYING CEMENT PNEUMATICALLY Filed May 2, 1938 4 Sheets-Sheet l k NM l unu u HHHH Wm F |r 1 1111 -L nillilllM 5 1 9w k r .L vm M No o F 3 ml. mm mm 3 Mn WM mw nn \IN.

Oct. 17, 1939.

H. L. EKIN UNIiI FOR APPLYING CEMENT PNEUMATICALLY 4 Sheets-Sheet 2 Filed May 2, I938 INVENTOR HUB-55L L E'K/N.

ATTORNEYS.

Oct. 17, 1939. H. 1.. EKIN 2,176,332

UNIT FOR APPLYING CEMENT PNEUMATICALLY Filed May 2, 1938 4 Sheets-Sheet 3 IN VENTOR wean L. EKIN.

ATTORNEYS.

Oct. 17, 1939., H. L. EKIN UNIT FOR APPLYING CEMENT PNEUMATICALLY Filed May 2, 1938 l2 fi 4 Sheets-Sheet 4 INVENTOR ATTORNEYS fatentecl Oct. 17, 193

UNITED STATES PATENT OFFICE UNIT FOR APPLYING CEMENT PNEUMATICALLY corporation of Ohio Application May 2, 1938, Serial No. 205,655

4 Claims.

This invention relates to an apparatus for supporting, transporting and operating various types of fluid and air operated mechanisms for applying coatings to various types of structures,

In particular, it is the object of this invention to provide a common truck frame supporting a propelling motive power unit which is also used for driving mechanism on the frame, such as an air compressor. I

It is another object to provide such a frame, with an air compressor driven from the motor, for supporting the air compressor in a protected position and in such a position as to insure the maximum circulation of air over the compressor.

It is a further object of this invention to provide on the frame, framework for supporting a gravity water tank and means for pivotally supporting alternately on the platform and upon the ground, mechanism for applying liquid coatings of various types, or abrasive coatings, such as sand and the like. This invention is adaptable for applying of concrete, sand, paint, asphalt and other materials for coating or abrading structures.

In particular, it is the object of this invention toprovide a common frame for movably supporting, and in different elevations, the apparatus for applying the materials mentioned; it is a further object to provide means for supplying air under pressure and liquid under pressure to the applying apparatus irrespective of its position, whether on the truck or on the ground.

It is an object to provide, in a truck, a cab on one side and a platform, cabinet and water tank on the other side of an air compressor to form a passageway, through which air will circulate in order to cool the compressor.

It is a further object to provide means for so mounting the compressor with respect to the driving mechanism that it will be in a balanced position, reasonably free from vibration and at such level as to be accessible toan operator standing on theground. a

It is a further object of this invention to provide articulated mechanism for regularly supporting the me'chanism for applying liquid or sand, either upon the truck or on the ground so that it is easily accessible either for transportation or during use.

It is an object in this connection to provide such'supply connections between the air compressor and Water tank and this mechanism that,

I no matter what its position is, it will be readily and safely supplied with suitable media for its operation.

'ing a gear box 4 and a drive shaft 5.

Referring to the drawings:

Figure 1 is a diagrammatic top plan view of the truck frame with the cross members partially broken away and the longitudinal members broken away to show the relationship between 5 the truck motor, the driving gear box, the power take-off and selective mechanism therefor and the final drive shaft;

Figure 2 is a side elevation of the truck with the cab partially broken away and with one l0 longitudinal truck frame partially broken away to show the arrangement of the several parts;

Figure 3 is a side elevation of the rear end of the truck and its platform with the concrete applying mechanism in its lowered position on 3.5 the ground;

Figure 4 is a rear elevation of Figure 2;

Figure 5 is a rear elevation of Figure 3;

Figure 6 is a horizontal section through the power take-off mechanism;

Figure 7 is a vertical section therethrough;

Figure 8 is a section on the line 88 of Figure 6, looking in the direction of the arrows; and

Figure 9 is a detail view showing the method of mounting of the compressor upon the vehicle l frame.

Referring to the drawings in detail, I and 2 designate longitudinal truck frame members, on which there is mounted the driving motor 3 hav- This drive shaft drives through the take-off mechanism, generally designated 6, and thence drives the final drive shaft 1 and rear wheels 8. The usual gear shift lever 9 is employed for the gear box 4 for the purpose of controlling the gear ratio between the motor 3 and the wheels 8 in the usual manner.

Mounted on the gear box' 4 is a bracket I0, upon which is mounted pivotally a power take-01f control lever H which, in turn, is connected to a pitman I2; This pitman I2 is connected to a transverse arm I3 on the shifter member M (see Figures 6 and 8). This shifter member is slotted at It? for receiving the spring pressed ball 15a pressed in position by the spring It.

The shifter member M has connected to it the shifter fork 16a carrying the clutch members I! and I8 which respectively engage with the clutch members l9 and 20.

The drive shaft 5 is connected to the shaft 2|, '50 on which is slidably mounted the sleeve 22 mounted upon the bearings 23. This sleeve carries the clutch member 20 and is keyed with the key 24 to the multiple V-groove pulley 25. When the clutch l8, which turns with the shaft 55 2|, is moved on the shaft 21 to engage with the clutch 20, this brings about the rotation of the pulley 25. When the clutch I1 is moved in the reverse direction into engagement with the clutch l8, which is a part of the sleeve 26 that is connected. to the driven shaft 1, then the driven shaft 1 is rotated. It will be understood that a variety of different power take-01f mechanisms may be employed.

The multiple V-groove pulley 25 has mounted in its groove a plurality of belts 21 which are mounted, in turn, upon a driven pulley 28 that is connected to the compressor 29. This air compressor is mounted upon the frame members I and 2 directly behind the cab 30. The air tank 3| for the compressor 29 is likewise carried on the frame members behind the cab and in front of the vertically disposed tool box 32, upon which is mounted the gravity liquid tank 33. The tool box 32 is mounted upon a platform 34 which has the intermediate support 35 between it and the side frame members I and 2. This forms a space for accommodation of the water and air pipes 36 and 31.

By locating the compressor between the back of the cab 38 and the front of the tool box 32, it is protected and the same time a passageway is formed through which air circulates over the compressor for cooling it.

Upon the rear end of the platform 34 there is detachably mounted an apparatus for mixing air, water and solids. The particular apparatus shown is for the purpose of applying wet concrete under air pressure. The exact construction of this apparatus is not important, as a variety of mechanisms for sand blasting, applying asphalt emulsions, paint and the like may be employed.

It is possible by this mechanism to provide a portable power unit for supplying air and water under pressure, means for transporting the mechanism and means for positioning it adjacent the job.

The apparatus is generally designated 38. It has connected to it the water pipe 36 and the air pipe 31. These pipes also may be connected to the nozzle 39, either directly or through the mechanism 38. The connections between the pipes 36 and 31 and the mechanism 38 and nozzle 39 are preferably flexible hose 40 and 4|. The nozzle 39 is connected to the mechanism 38 by the flexible hose 42.

This mechanism 38 normally rests, either upon the truck body 34 or the ground 43, upon supporting legs 44. The tops of these legs are connected by pivots 45 to arms 46, pivoted at 41'! upon the brackets 48 that are carried on top of the truck platform 34. Thus the apparatus 38 is maintained in its vertical position, either upon the end of the truck or on the ground.

The flexible connections between the mechanism and the protected rigid pipes 36 and 3! makes it possible to operate the mechanism 38 with equal facility, whether it is on. the truck or on the ground. In both positions, it is substantially below the gravity tank 33. In both positions, the apparatus 38 is maintained in a vertical position, desirable for its successful operation. Thus, there is provided the combination of a truck, a body, air compressor, water tank, mixing apparatus, hose and discharge nozzle, all in one complete self-contained unit.

The owner of the apparatus can practically eliminate all setting up expense of such equipment, which was formerly a matter of large expense, making it prohibitive to handle small jobs.

Referring to Figure 9, there will be seen in detail the method of mounting the compressor 29. The cross members 49 are connected by bolts 50 around the frame members I and 2. Interposed between these cross members 49 and the frame members I and 2 are the blocks 5|. Likewise, the platform 34 is retained by bolts 52.

The dispensing apparatus 38 is locked in position on the truck by the removable locking pins 53 which are carried in receiving openings in the sides of the dispensing apparatus. These pins engage with the arms 46.

The air line 40 is connected to driving mechanism designated 54 to agitate the concrete or other materials in the apparatus 38. Thus, the air is used not only to act as an ejector for the concrete and for mixture therewith through the pipe line 55, but it also acts as an operator through a motor in 54 for agitating the concrete or other materials in the apparatus 38. This apparatus may be equipped either with an air control friction drive or some other means for varying its speed.

It will be understood that the details of the dispensing apparatus form no part of this invention.

It will be understood that I desire to comprehend within my invention such modifications as come within the scope of the claims and the in- Vention.

Having thus fully described my invention, what I claim as new and desire to secure by Letters :5.

Patent is:

1. In combination, a truck having a platform, means on the truck for supplying air and water under pressure, a dispensing apparatus mounted on said truck, links pivoted to said apparatus and to said truck, legs on said dispensing apparatus for supporting it on said truck or on the ground, and flexible connections between said dispensing apparatus and said means for supplying water and air under pressure.

2. In combination, a truck platform, a dispensing apparatus, arms on either side thereof pivotally connecting it to a truck so as to position it on the truck or behind the truck, and legs attached to said dispensing apparatus for supporting it on the truck or on the ground behind the truck.

3. In combination, a truck platform, a dispensing apparatus, arms on either side thereof pivotally connecting it to a truck so as to position it on the truck or behind the truck, legs attached to said dispensing apparatus for sup.- porting it on the truck or on the ground behind the truck, and removable means from said dispensing apparatus adapted to engage with said arms to lock the dispensing apparatus in position on the truck.

4. In combination, a truck having a platform, a U-shaped support mounted thereon, a dispensing apparatus carried thereby, links pivoted to said truck and to said dispensing apparatus on either side thereof, and locking pins on said dispensing apparatus adapted to engage with said arms to hold the dispensing apparatus on said truck.

HURSEL L. EKIN. 

